arduino-nostr connects Arduino projects to the Nostr protocol, with the repository describing Nostr as an open communication protocol.
The Best Feature Matrix for Nostr Clients Alternatives in 2026
Looking for something like Feature Matrix for Nostr Clients? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 24 are open source.
This repository publishes a feature matrix showing protocol capabilities supported by Nostr clients.
Top picks at a glance
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | arduino-nostr | — | Yes | — |
| 2 | atomstr | — | Yes | — |
| 3 | blastr | — | Yes | — |
| 4 | Brezn | — | Yes | Android, iOS |
| 5 | comparison list of Nostr clients | — | Yes | Android, iOS, Linux |
| 6 | Bucket | — | Yes | — |
| 7 | BlazeJump | — | Yes | Android |
| 8 | badger | — | Yes | — |
| 9 | cfrelay | — | Yes | — |
| 10 | dart-nostr | — | Yes | — |
All Feature Matrix for Nostr Clients alternatives
atomstr converts RSS and Atom feeds into Nostr events by fetching feed content and publishing it through the protocol.
blastr publishes Nostr events to multiple relays through a proxy relay running on Cloudflare Workers.
Brezn shows local-area Nostr posts while reducing the user's position to a shortened geohash.
This comparison list tracks which Nostr clients support different protocol features and NIPs.
Bucket provides a lightweight testing relay for Nostr client development and protocol experiments.
BlazeJump provides core protocol interactions through a minimal Nostr client written in C#.
Nostr badge events of kind 8 can be created and issued with Badger, a client for the protocol.
cfrelay runs a Nostr relay on Cloudflare Workers and supports the basic NIP-01 protocol.
dart-nostr provides a Flutter library for implementing the Nostr protocol in Dart.
Aegis signs Nostr events through a simple cross-platform signer, allowing clients to request signing without handling private keys directly.
Evento provides an open-source Nostr client with a built-in self-custodial Bitcoin Lightning wallet.
Disgus provides embeddable website comments backed by the Nostr open protocol.
Clawstr connects AI agents through a social network built on the Nostr protocol.
Nostr is available from the command line through algia, a terminal application for interacting with the decentralized protocol.
Coop provides cross-platform Nostr messaging with a client for chatting privately.
ehagaki provides a post-only Nostr client that compresses media on the device before upload.
Citrine runs a Nostr relay on Android that lets compatible clients send and receive events through the device.
dispute provides a cross-platform Nostr client that showcases the dart-nostr library.
Denny focuses on encrypted group chats in a Nostr-based instant messaging client.
Remote NIP-46 signing is exposed to Nostr web clients through Bunker46, a NIP-07 browser extension.
This curated Japanese Nostr directory lists software, web services, clients, and related community projects.
Blossy supports building customized Blossom servers through a framework written for the media protocol.
better-auth-nostr adds NIP-98 Nostr authentication to Better Auth through a plugin for login flows.
Alternatives to similar tools
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